That SS concept has never floated my boat. (Yes, I know, I own an Aztek so how can I comment on other car's styling...blah blah blah)
Those curving bulges over the wheel just don't look good in person. I saw it at the Dallas auto show. I have the same problem with the RX-8. Looks good in photos, looks bad in person.
In fact, after seeing the Solstice, no other concept or car looks good anymore. I was gung ho for a 05 mustang convertible, and they are still handsome, but I'm so hooked on the Solstice I could never buy anything else now.